So let’s stop for a second and pull back. Let’s pull way, way, way, way back.

Okay.

You used to be a sperm.

Now don’t get self conscious. We all used to be sperm. Check out the period at the end of this sentence. That tiny little dot is around 600 microns wide. When you were a sperm you were about 40 microns wide. And you were so cute back then too with your little tail wagging all over the place and your love of swimming. Boy could you swim. In fact if you hadn’t outswum your siblings, you might be a slightly different version of yourself right now. Maybe you’d have a higher-pitched laugh, hairier arms, or stand two inches shorter.

You had a great life as a sperm but always felt incomplete. The truth is you weren’t whole until you met an egg. And then you two began a nine month project to make a cool new version of you. It took a while but you grew arms and legs and eyeballs and lungs. You grew nerves and nails and eardrums and tongues.

For a sperm to meet an egg it means your mom met your dad. But it’s not just them. Think about how many people had to meet, fall in love, and make love for you to be here. Here’s the answer: A lot. Like a lot a lot.

Before they had you, none of your ancestors drowned in a pond, got strangled by a python, or skied into a tree. None of your ancestors choked on a peach pit, were trampled by buffalo, or got their tie stuck in an assembly line.

None of your ancestors was a virgin.

You are the most modern, brightest spark of years and years and years of survivors who all had to meet each other in order to eventually make you.

Your nineteenth century Grandma met your nineteenth century Grandpa down at the candle-making shoppe. She liked his muttonchops and he thought she looked cute churning butter.

Your Middle Ages Grandpa met your Middle Ages Grandma while they both poured hot oil from the castle turrets on pillaging vikings. She liked his grunts and he thought the flowers in her hair made her heaving bosoms jump out.

Your Ice Age Grandpa crossing the Bering Bridge in a woolly mammoth fur met your Ice Age Grandma dragging a club in the opposite direction. He liked hersaber-tooth necklace and she dug his unibrow.

Your ancient rainforest Grandpa was picking berries naked in the bush while your ancient rainforest Grandma was spearing dodos for dinner. She liked his jungle funk and he liked her cave drawings. If it wasn’t for the picnic they had afterwards, maybe you wouldn’t be here.

You’re pretty lucky all those people met, fell in love, made love, had babies, and raised them into other people who did it all over again. This happened over and over and over again for you to be here. Look around the plane, coffee shop, or park right now. Look at your husband snoring in bed, your girlfriend watching TV, or your sister playing in the backyard. You are surrounded by lucky people. They are all the result of long lines of survivors.

So you’re a survivor, too. You’re the latest and greatest. You’re the top of the line. You’re the very best nature has to offer.

But a lot had to happen before all your strong, fiery ancestors met each other and fell in love over and over again for hundreds of thousands of years …

So let’s stop for a second and pull back again. Let’s pull way, way, way, way back.

Okay.

Let’s go on a field trip. Put your shoes on because we’re heading outside.

Take a bowling ball and drop it on the edge of your driveway. That’s our Sun. Yeah, the ball is only eight inches across and the actual Sun is eight hundred thousand miles across but that’s our scale for this little brainwave. Okay, now walk down your street ten big paces and drop a grain of salt on your neighbor’s lawn. That’s Mercury. Take nine more paces down the street and drop a peppercorn for Venus. And then take another seven paces, so you’re now two or three houses down the block, and toss down another peppercorn.

You got it.

That peppercorn is Earth.

Here we are, basking in the blazing sun, twenty-six big steps away from the bowling ball. Our giant planet is just a tiny speck in the middle of nowherebut here’s the crazy part: It gets a whole lot bigger.

If you keep walking, Mars is only couple more houses away, but Jupiter ends upninety-five big paces down the street, out of the neighborhood, and halfway to the corner store. By now a dog is probably slobbering in the bowling ball finger holes and kids are flying by you on their bikes, slurping drippy popsicles, and wondering what’s up with this nut tossing crumbs on the sidewalk, acting out some demented suburban version of Hansel and Gretel.

If you want to finish up our solar system, you’re going to have to start taking two- and three-hundred paces for the remaining planets, eventually dropping a grain of salt for Pluto half a mile away from the bowling ball. You can’t see the bowling ball with binoculars and it’s getting cold out for your long walk home.

Turns out our big bright star and all its salt and peppercorns are racing around a cosmic race track with two hundred billion other big bright bowling ball stars. You’d have to cover the entire Earth with bowling balls eight thousand times to represent the number of stars in our race track. Did we mention this race track has a name? Yup, it’s called the Milky Way galaxy, presumably because the scientists who first noticed it were all eating delicious Milky Waycandy bars late that Friday night down at the telescopes.

So basically our bowling ball, salt, and peppercorns are flying in the fast lane around a ridiculously giant race track galaxy called the Milky Way with billions and billions of other bowling balls, salt grains, and peppercorns, too.

But are you ready for the craziest part: That’s just our galaxy. Guess how many giant racetrack galaxies are in all of outer space? Oh, not many.Just more thanwe can possibly count. Honestly, nobody knows how many galaxies are out there in the big blackness. All we know is that every few years somebody stares out a little further and finds millions more of them just shining way out in the void. We don’t know how deep it goes because our rocketships don’t blast off that far and our thickest, fattest telescopes can’t see that far.

Now, all this space talk might make us feel small and insignificant, but here’s the thing, here’s the big thing, here’s the biggest thing of all: Of the millions of places we’ve ever seen it appears as though Earth is the only place that can support life. The only place! Oh sure, there could be other life-giving planets we haven’t seen yet, but the point is that Earth could easily have been a clump of sulphur gas, be lying in darkness forever, or have a winter that dips a couple hundred degrees and lasts twenty years like Uranus.

On this planet Earth, the only one in the giant dark blackness where anything can live, we ended up being humans.

Congratulations, us!

We are the only species on the only life-giving rock capable of love and magic, architecture and agriculture, jewelry and democracy, airplanes and highway lanes. We’re the only ones with interior design and horoscope signs, fashion magazines and house party scenes, horror flicks with monsters, guitar jams at concerts. We got books, buffets and radio waves, wedding brides and roller coaster rides, clean sheets and good movie seats, bakery air and rain hair, bubble wrap and illegal naps.

We got all that. But people, listen up.

We only get a hundred years to enjoy it.

I’m sorry but it’s true.

Every single person you know will be dead in a hundred years — the foreman at your plant, the cashiers at your grocery store, every teacher you’ve ever had, anyone you’ve ever woken up beside, all the kids on your street, every baby you’ve ever held, every bride who’s walked down the aisle, everytelemarketer who’s called you at dinner, every politician in every country, every actor in every movie, everyone who’s cut you off on the highway, everyone in the room you’re sitting in right now, everyone you love, and you.

Life is so great that we only get a tiny moment to enjoy everything we see. And that moment is right now. And that moment is counting down. And that moment is always, always fleeting.

You will never be as young as you are right now.

So whether you’re enjoying your first toothpicked turkey cold cuts and marveling at apples from South Africa, dreaming of strange and distant relatives from thousands of years ago, or staring into the blackness of deep, deep space, just remember how lucky we all are to be here right now.

If you feel that sense of wonder and beauty in all the tiny joys in life then you’re part of an international band of old souls and optimists, smiling on sidewalks, dancing at weddings, and flipping to the other side of the pillow. Let’s all high five and keep thinking wild thoughts, dreaming big dreams, and laughing loud laughs.